/Engine/Source/Runtime/Messaging/Public/INetworkMessagingExtension.h
Per-node per-message transfer statistics.
struct FOutboundTransferStatistics
uint64
BytesAcknowledged
Total number of bytes acknowledge by the destination.
uint64
BytesSent
Total bytes sent thus far.
uint64
BytesToSend
Total bytes to send for the given MessageId
FGuid
DestinationId
Unique Id for the target.
int32
MessageId
Monotonically increasing ID for each message sent across the network.